植物生态学报 ›› 1987, Vol. 11 ›› Issue (4): 318-323.

• 论文 • 上一篇    下一篇

野外条件下测定群体光合、暗呼吸和蒸腾作用的装置和方法

祖元刚,常杰   

  • 发布日期:1987-04-10
  • 通讯作者: 祖元刚

The Method and Instrument for the Measurement of the Photosynthesis, Respiration and Transpiration of the Plant Group under the Field Condition

Zu Yuan-gang, Chang Jie   

  • Published:1987-04-10
  • Contact: Sun Cheng-yong

摘要: 野外条件下同时测定植物群体光合作用,呼吸作用和蒸腾作用的综合性测试装置,是为适应当前草原生态系统第一性生产力研究的需要并根据植物的光合作用、呼吸作用和蒸腾作用过程中的气体交换原理,参考国内外有关学者的类似工作而设计、组装的。该测试装置主要由人工气候箱、环境控制系统、气道系统、测试系统和电源装置五部分组成,并兼有测定环境因子的配套仪器。通过1983—1985年我们在东北天然羊草草原上实际应用的结果证明,该装置的各项测定指标均达到了预定的设计要求。本文就该测试装置的设计原理、基本结构、测试程序和计算方法等方面的问题进行了初步探讨,以便为该测试装置的不断改进和完善提供参考依据。

Abstract: The design of an instrument for measurement of the photosynthesis, respiration and transpiration of plant groups under field conditions is shown. It is made of five components: 1. plant chamber, 2. environment control system, 3. gas passage system, 4. measuring system, and 5. power supply. It also has the necessary instruments for measuring environmental factors. Its practical operation on Northeast China’s Yangcao (Leymus chinensis) grassland (1983—1985) proved that all the design specifications had been met. A preliminary approach to the principle of design, measuring procedure and calculating method is also shown in this paper.